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Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America’s 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian

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Wed, 23 Jul 2025, 21:00 1753304407 | BY: SEVERAL CONTRIBUTORS

Map of today’s active volcanoes

The lava flow continues to travel mostly eastward (image: IMO)

Satellite image of Kirishima volcano on 23 Jul 2025

Satellite image of Ibu volcano on 23 Jul 2025

Svartsengi (Reykjanes peninsula, SW Iceland): Only one of the two previously active craters remains active. The activity at the northern crater stopped around 22:00 local time last night. The lava continues to keep the flow active towards the east into Fagradal, though its progress is very gradual.
The seismic tremor is gradually decreasing, with occasional fluctuations caused by the build-up along the crater rim.
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Shiveluch (Kamchatka): (23 Jul) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 20 kts in E direction.

The

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